How to Manually Clear SendGuard365 Outlook Add-in Cache

Step 4: Restart New Outlook 

1. Reopen Outlook. 
2. Send a test email, this will relaunch SendGuard365
3. Outlook will automatically rebuild the cache. 

Outlook on the Web (OWA) 

Step 1: Clear Browser Cache (Recommended Method) 

Since OWA runs in a browser, clearing the browser's cache will also clear the add-in cache. 

For Microsoft Edge (recommended for OWA) 

1. Open Edge. 
2. Press Ctrl + Shift +Delete.
3. Select: 
   • Cached images and files
4. Click Clear now.
5. Restart the browser and sign in againto OWA. 

For Google Chrome 

1. Open Chrome. 
2. Press Ctrl + Shift +Delete.
3. Select: 
   • Cached images and files
4. Click Clear Data.
5. Restart Chrome and sign in again. 

Step 2: Reopen Outlook on the Web 

• Sign back in to Outlook on the Web. 
• Send a test email, this will relaunch SendGuard365

• Outlook will automatically rebuild the cache. 

Classic Outlook for Windows 

Step 1: Close Outlook Completely 

• Close Microsoft Outlook. 
• Open Task Manager and confirm that no Outlook.exe processes are running.

Step 2: Clear the WEF Cache Folder 

1. Press Windows + R.
2. Enter the following path: %LOCALAPPDATA%\Microsoft\Office\16.0\Wef\
3. Delete all content inside this folder. 

Step 3: Clear the HubAppFileCache Folder 

1. Press Windows + R.
2. Enter the following path:

%userprofile%\AppData\Local\Microsoft\Outlook\HubAppFileCache 

3. Delete allcontentsinside the folder.

Step 4: Restart Outlook 

• Reopen Outlook. 
• Send a test email, this will relaunch SendGuard365
• Outlook will automatically rebuild the cache. 

Notes 

• Clearing the cache does not remove your emails or account settings. 
• The add-in may take slightly longer to load on first launch after clearing the cache.